智能电网中基于层次密钥的细粒度访问机制的研究

Research on fine-grained access mechanism based on hierarchical key in Smart Grid

为了保证通信的安全,加密是基本的也是重要的解决办法,其中密钥的管理是关键问题。目前已有的方案大多采用公钥加密来实现通信过程的安全,开销花费较大。本文提出基于层次密钥管理的对称加密方案保证数据的完整可用性,防止数据被篡改。并给出了性能分析,方案可以实现基本的安全传输并能够降低开销,节约成本。

In order to ensure the security of communication,encryption is a basic and important solution,in which the key management is the key problem.At present,most of the existing schemes use public key encryption to realize the security of communication process,which costs a lot.This paper proposes a symmetric encryption scheme based on hierarchical key management to ensure the integrity and availability of data and prevent data from being tampered with.The performance analysis is given.The scheme can realize basic secure transmission,reduce overhead and save cost.